यदि \(A\setminus B\ne\varnothing\) और \(B\setminus A=\varnothing\), तो कौन सा कथन सही है?
If \(A\setminus B\ne\varnothing\) and \(B\setminus A=\varnothing\), which statement is correct?
Explanation opens after your attempt
Correct Answer
A. \(B\subset A\)
Concept
From \(B\setminus A=\varnothing\), \(B\subseteq A\), and from \(A\setminus B\ne\varnothing\), \(A\ne B\). Hence \(B\subset A\).
Why this answer is correct
The correct answer is A. \(B\subset A\). From \(B\setminus A=\varnothing\), \(B\subseteq A\), and from \(A\setminus B\ne\varnothing\), \(A\ne B\). Hence \(B\subset A\).
Exam Tip
\(B\setminus A=\varnothing\) से \(B\subseteq A\) है और \(A\setminus B\ne\varnothing\) से \(A\ne B\)। इसलिए \(B\subset A\) है।
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